EP3444496A1 - Flüssigkeitsdämpfendes bremssystem - Google Patents

Flüssigkeitsdämpfendes bremssystem Download PDF

Info

Publication number
EP3444496A1
EP3444496A1 EP17781834.1A EP17781834A EP3444496A1 EP 3444496 A1 EP3444496 A1 EP 3444496A1 EP 17781834 A EP17781834 A EP 17781834A EP 3444496 A1 EP3444496 A1 EP 3444496A1
Authority
EP
European Patent Office
Prior art keywords
braking
hydraulic switching
gearbox
liquid
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17781834.1A
Other languages
English (en)
French (fr)
Other versions
EP3444496A4 (de
Inventor
Yibo Zeng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610227237.2A external-priority patent/CN105715704B/zh
Priority claimed from CN201620304886.3U external-priority patent/CN205780449U/zh
Application filed by Individual filed Critical Individual
Publication of EP3444496A1 publication Critical patent/EP3444496A1/de
Publication of EP3444496A4 publication Critical patent/EP3444496A4/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T10/00—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
    • B60T10/04—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrostatic brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • F16D57/005—Details of blades, e.g. shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • F16D57/06—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a pump circulating fluid, braking being effected by throttling of the circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/08—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels using fluid or powdered medium
    • B60T1/093—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels using fluid or powdered medium in hydrostatic, i.e. positive displacement, retarders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • F16D57/002—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a medium with electrically or magnetically controlled internal friction, e.g. electrorheological fluid, magnetic powder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/535—Magnetorheological [MR] fluid dampers
    • F16F9/537—Magnetorheological [MR] fluid dampers specially adapted valves therefor

Definitions

  • the invention relates to a field of braking technology, and more particularly to a liquid damping type braking system.
  • Braking systems are very common in our production and life. In routine automobiles and mechanical devices, the braking system always affects the safety of our production and life.
  • the most widely used conventional friction type braking system is mainly composed of a brake support, a friction element and a brake releaser.
  • the existing friction type braking system inevitably damages performances of friction materials due to a complicated structure of friction elements, a fast consumption of friction materials and a frictional heating of the friction type braking method, which results in a brake failure due to an insufficient resistance of a friction braking and thus causes a great loss to our lives and property.
  • the object of this invention is to provide a liquid damping type braking system having simple structure, no material wear, good braking effect and low braking cost, and to solve the problems of the existing braking system.
  • a liquid damping type braking system comprises a damping part and a brake control part
  • the damping part comprises a sealed gearbox fixed to a body of a device and at least one pair of engaged gears mated with an inner chamber of the gearbox, the engaged gears are provided in the gearbox, a driving axle of a driving gear is a brake shaft which extends out of the gearbox and connects to an external driving shaft or is an external driving shaft, two flowing channels are provided on both sides of the gearbox of the engaged gears respectively, extracting outlets are provide on two flowing channels, the extracting outlets are connected to two joints of a braking liquid storage box to form a brake liquid sealing circulation passage,
  • the brake control part comprises at least one braking switch valve arranged on the circulation passage, a control end of the braking switch valve is connected to a brake control mechanism, an opening and closing state of the braking switch valve is controlled by the brake control mechanism to obtain a deceleration braking.
  • the braking switch valve comprises a first hydraulic switching valve and a second first hydraulic switching valve, two hydraulic switching valves are respectively disposed on passages of two flowing channels for controlling the opening and closing of the flowing channels respectively, two hydraulic switching valves have the same structure and both of them comprise a cylindrical housing, both sides of the cylindrical housing are provided with an opening to communicate with a blocked flowing channel, a switch sliding plug is disposed in the cylindrical housing, the switch sliding plugs of two hydraulic switching valves are respectively provided with a radial through hole, the radial through holes correspond to two flowing channels respectively, a reset spring is arranged between the switch sliding plug and a bottom of the cylinder, an outer end of the cylindrical housing is provided with a driving liquid inlet and a driving liquid outlet, both the driving liquid inlet and the driving liquid outlet of two hydraulic switching valves are connected to the brake control mechanism.
  • the brake control mechanism is a hydraulic driving device and it comprises an oil storage tank, an oil pump and a piston cylinder in sequence, a control end of the piston cylinder is connected to a brake operation mechanism, an output end of the piston cylinder is connected to oil inlets of the first hydraulic switching valve and the second hydraulic switching valve via a liquid inlet conduit, oil outlets of the first hydraulic switching valve and the second hydraulic switching valve are connected to the oil storage tank via a liquid outlet conduit, a liquid inlet solenoid valve and a liquid outlet solenoid valve are disposed on the liquid inlet conduit and the liquid outlet conduit respectively.
  • a liquid damping type braking system for an automobile comprises a damping part and a brake control part
  • the damping part comprises a sealed gearbox and at least one pair of engaged gears mating with an inner chamber of the gearbox, the engaged gears are arranged in the gearbox
  • a housing of the gearbox is fixed to a brake mounting base provided on a body of the automobile
  • a driving axle of a driving gear is a brake shaft which extends out of the gearbox and connects to an external driving shaft
  • two flowing channels are provided on both sides of the gearbox of the engaged gears respectively
  • two extracting outlets are respectively provided on the two flowing channels
  • two extracting outlets are connected to two joints of a braking liquid storage box via two connection conduits respectively to form a brake fluid sealing circulation passage
  • the brake control part comprises at least one braking switch valve arranged on the circulation passage, a control end of the braking switch valve is connected to a brake control mechanism, an opening and closing state of the braking switch valve is controlled by the brake control mechanism to obtain a de
  • the braking switch valve comprises a first hydraulic switching valve and a second hydraulic switching valve, two hydraulic switching valves are disposed on passages of the two flowing channels for controlling the opening and closing of the flowing channels respectively, two hydraulic switching valves have the same structure and both of them comprise a cylindrical housing, both sides of the cylindrical housing are provided with an opening respectively for communicating a blocked flowing channel, a switch sliding plug is disposed in the cylindrical housing, the switch sliding plugs of two hydraulic switching valves are respectively provided with a radial through holes, the radial through holes correspond to two flowing channels respectively, a reset spring is provided between the switch sliding plug and a bottom of the cylinder, an outer end of the cylindrical housing is provided with a driving liquid inlet and a driving liquid outlet, both the driving liquid inlet and the driving liquid outlet of two hydraulic switching valves are connected to the brake control mechanism.
  • the brake control mechanism is a hydraulic driving device and it comprises an oil storage tank, an oil pump and a piston cylinder in sequence, a brake operation mechanism of the piston cylinder is a brake pedal, an output end of the piston cylinder is connected to oil inlets of the first hydraulic switching valve and the second hydraulic switching valve via a liquid inlet conduit, oil outlets of the first hydraulic switching valve and the second hydraulic switching valve are connected to the oil storage tank via a liquid outlet conduit, a liquid inlet solenoid valve and a liquid outlet solenoid valve are respectively disposed on the liquid inlet conduit and the liquid outlet conduit, the liquid inlet solenoid valve and the liquid outlet solenoid valve are used as electrical control switches.
  • a fluid damping type braking system for a train comprises a damper part and a brake control part
  • the damping part comprises a sealed gearbox corresponding to each train wheel and at least one pair of engaged gears mating with an inner chamber of the gearbox, the engaged gears are provided in the gearbox, the gearbox is provided on an axle of the train wheel and is connected to the axle in a form of sliding sealing connection, a housing of the gearbox is fixed to a bogie of a carriage of the train, a driving axle of a driving gear is a brake shaft and is coaxial with the axle of the train wheel, two flowing channels are provided on both sides of the gearbox of the engaged gears, two extracting outlets are provide on two flowing channels respectively and the extracting outlets are connected to a braking liquid storage box via two connection conduits, the braking liquid storage box is provided on the bogie, the brake control part comprises a braking switch valve arranged on two flowing channels or two connection conduits, a control end of the braking switch valve is connected to a train brake control mechanism,
  • a front gearbox and a rear gearbox are respectively provided on both sides of a same bogie of the train, one braking liquid storage box is shared by the gearbox on the same side.
  • the braking switch valve comprises a first hydraulic switching valve and a second hydraulic switching valve, two hydraulic switching valves are provided on passages of two flowing channels respectively for controlling the opening and closing of the two flowing channels, two hydraulic switching valves have the same structure and both of them comprise a cylindrical housing, both sides of the cylindrical housing are respectively provided with an opening for communicating a blocked flowing channel, a switch sliding plug is disposed in the cylindrical housing, the switch sliding plugs of two hydraulic switching valves are respectively provided with a radial through hole, the radial through holes correspond to two flowing channels respectively, a reset spring is provided between the switch sliding plug and a bottom of the cylinder, an outer end of the cylindrical housing is provided with a driving liquid inlet and a driving liquid outlet, both the driving liquid inlet and the driving liquid outlet of two hydraulic switching valves are connected to a hydraulic drive device.
  • the hydraulic drive device comprises an oil storage tank, an electrical oil pump and a piston cylinder in sequence, a brake operation mechanism of the piston cylinder is a train control system, an output end of the piston cylinder is connected to oil inlets of the first hydraulic switching valve and the second hydraulic switching valve via a liquid inlet conduit, oil outlets of the first hydraulic switching valve and the second hydraulic switching valve are connected to the oil storage tank via a liquid outlet conduit, a liquid inlet solenoid valve and a liquid outlet solenoid valve are disposed on the liquid inlet conduit and the liquid outlet conduit respectively, the liquid inlet solenoid valve and the liquid outlet solenoid valve are used as electrical control switches.
  • the invention has the following advantages: (1) the gearbox is structurally transformed and then applied to the braking field, and the problems of large abrasion, poor braking effect, high braking cost and the like of a traditional friction braking material are resolved, and at the same time, the phenomenon that the braking fails due to heating in the traditional friction braking is effectively avoided; (2) the liquid damping type braking system of this invention will not cause a failure of braking when the strength of the transmission shaft, the gears and the gearbox housing is sufficient, and thereby effectively ensuring the safety of people's properties and lives; (3) the liquid damping type braking system of this invention has a simple structure and low manufacturing cost, and the liquid damping type braking system of this invention is convenient to use and maintain and is easy to operate. Also, the braking operation of this invention is easy, safe and reliable, and the liquid damping type braking system of this invention can form any braking characteristic curves needed by a device so as to satisfy practical needs.
  • an externally engaged liquid damping type braking system of this invention comprises a damping part and a brake control part.
  • the damping part comprises a sealed gearbox 1 fixed to a device body and at least one pair of externally engaged gears which are disposed in the gearbox 1 and are mated with an inner chamber of the gearbox.
  • a driven gear 2 is mounted in the gearbox 1 via a driven axle 3.
  • a driving axle 5 of a driving gear 4 is a brake shaft which extends out of the gearbox and connects to an external driving shaft or is an external driving shaft.
  • Flowing channels 6, 7 are provided on both sides of the gearbox of the externally engaged gear.
  • Extracting outlets 6.1,7.1 are provide on two flowing channels 6, 7 respectively and the extracting outlets 6.1, 7.1 are connected to two joints 8.1, 8.2 of a braking liquid storage box 8 to form a brake liquid sealing circulation passage.
  • the brake control part comprises at least one braking switch valve 9 disposed on the circulation passage. A control end of the braking switch valve 9 is connected to a brake control mechanism 12. The opening and closing state of the braking switch valve 9 is controlled by the brake control mechanism 12 to obtain a deceleration braking.
  • FIG2 and FIG3 show an embodiment of the hydraulic switching valve, the gearbox and the damping part of the externally engaged liquid damping type braking system of this invention.
  • the braking switch valve 9 is a hydraulic switch and comprises a first hydraulic switching valve 9a and a second first hydraulic switching valve 9b.
  • the two hydraulic switching valves 9a, 9b are respectively disposed on passages of two flowing channels 6, 7 for respectively controlling the open and close of the flowing channels 6, 7.
  • Two hydraulic switching valves 9a, 9b have the same structure. Both of them comprise a cylindrical housing 9.1. Both sides of the cylindrical housing 9.1 are provided with one opening to communicate with the blocked flowing channel.
  • a switch sliding plug 9.2 is disposed in the cylindrical housing 9.1. Radial sliding holes 9.6, 9.7 are respectively provided on the switch sliding plugs 9.2 of two hydraulic switching valves 9a, 9b and correspond to the two flowing channels 6, 7.
  • a reset spring 9.3 is provided between the switch sliding plug 9.2 and the bottom of the cylinder.
  • An outer end of the cylindrical housing 9.1 is provided with a driving liquid inlet 9.4 and a driving liquid outlet 9.5. Both the driving liquid inlet 9.4 and the driving liquid outlet 9.5 of two hydraulic switching valves 9a, 9b are connected to a brake control mechanism 12.
  • FIG. 4 is a structural schematic diagram of a hydraulic switching valve and a gearbox of an internally engaged liquid damping type braking system according to this invention. Its structure is similar to the structure of the externally engaged liquid damping type braking system except for the following structures.
  • An internally engaged driven gear 2 inside a gearbox 1 is an internal ring gear embedded in the gearbox.
  • a driving axle 5 of a driving gear 4 is a brake shaft extending out of the gearbox to connect to an external driving shaft or is an external driving shaft.
  • Other configurations, such as the hydraulic switching valve of the internally engaged liquid damping type braking system are similar to those of the externally engaged liquid damping type braking system.
  • FIG 5 is a structural schematic diagram of an embodiment of a liquid damping type braking system for an automobile according to this invention.
  • This embodiment comprises a damping part and a brake control part.
  • the damping part comprises a sealed gearbox 1 whose housing is fixed to a brake mounting base and at least one pair of externally engaged gears which are disposed in the gearbox 1 and are mated with an inner chamber of the gearbox.
  • a driven axle 3 of a driven gear 2 is mounted in the gearbox 1.
  • a driving axle 5 of a driving gear 4 is a brake shaft and is coaxial with an axle of a train wheel 16.
  • the driven gear 2 is an internal ring gear embedded in the gearbox.
  • the driving axle 5 of the driving gear 4 is a brake shaft which extends out of the gearbox and connects to an external driving shaft or is an external driving shaft.
  • Flowing channels 6, 7 are respectively provided on both sides of the gearbox of the engaged gears.
  • Two extracting outlets 6.1, 7.1 are respectively provided on the two flowing channels 6, 7.
  • the extracting outlets 6.1, 7.1 are respectively connected to two joints 8.1, 8.2 of a braking liquid storage box 8 via two connection tubes 10, 11 to form a brake fluid sealing circulation passage.
  • the hydraulic switching valve, the structure of the gearbox and the damping part shown in FIGS.2-3 are applied.
  • a braking switch valve 9 comprises a first hydraulic switching valve 9a and a second hydraulic switching valve 9b.
  • the two hydraulic switching valves 9a, 9b are respectively disposed on the passages of the two flowing channels 6, 7 for respectively controlling the opening and closing of the flowing channels 6, 7.
  • Two hydraulic switching valves 9a, 9b have the same structure.
  • Both of them comprise a cylindrical housing 9.1. Both sides of the cylindrical housing 9.1 are provided with one opening for communicating a blocked flowing channel.
  • a switch sliding plug 9.2 is disposed in the cylindrical housing 9.1.
  • the switch sliding plugs 9.2 of two hydraulic switching valves 9a, 9b are respectively provided with radial through holes 9.6, 9.7 which correspond to two flowing channels 6, 7.
  • a reset spring 9.3 is provided between the switch sliding plug 9.2 and the bottom of the cylinder.
  • An outer end of the cylindrical housing 9.1 is provided with a driving liquid inlet 9.4 and a driving liquid outlet 9.5. Both the driving liquid inlet 9.4 and the driving liquid outlet 9.5 of two hydraulic switching valves 9a, 9b are connected to a brake control mechanism 12. The opening and closing state of the braking switch valves 9a, 9b are controlled by the brake control mechanism 12 to obtain a deceleration braking.
  • the brake control mechanism 12 is a hydraulic driving device, and it comprises an oil storage tank 12.1, an oil pump 12.2 and a piston cylinder 12.3, which are connected in sequence.
  • a brake operation mechanism 13 of the piston cylinder 12.3 is a brake pedal.
  • An output end of the piston cylinder 12.3 is connected to oil inlets of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b via a liquid inlet conduit 12.4.
  • Oil outlets of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b are connected to the oil storage tank 12.1 via a liquid outlet conduit 12.5.
  • a liquid inlet solenoid valve 12.6 and a liquid outlet solenoid valve 12.7 are respectively disposed on the liquid inlet conduit 12.4 and the liquid outlet conduit 12.5.
  • the liquid inlet solenoid valve 12.6 and the liquid outlet solenoid valve 12.7 are used as electrical control switches.
  • FIG. 6 shows an embodiment of a liquid damping type braking system for a train.
  • the liquid damping type braking system for a train comprises a damping part and a brake control part.
  • the damping part comprises a sealed gearbox 1 corresponding to each train wheel.
  • the gearbox 1 is provided on an axle of the train wheel 16 and is connected to the axle in a form of sliding sealing connection.
  • a housing of the gearbox 1 is fixed to a bogie of a carriage.
  • a driven axle 3 of a driven gear 2 is mounted in the gearbox 1.
  • a driving axle 5 of a driving gear 4 is a brake shaft and is coaxial with an axle of a train wheel 16.
  • the driven gear 2 is an internal ring gear embedded in the gearbox.
  • the driving axle 5 of the driving gear 4 is a brake shaft which extends out of the gearbox and connects to an external driving shaft or is an external driving shaft.
  • Flowing channels 6, 7 are provided on both sides of the gearbox of the engaged gears.
  • Two extracting outlets 6.1,7.1 are respectively provide on two flowing channels 6, 7 in the gearbox and the extracting outlets 6.1, 7.1 are connected to a braking liquid storage box 8 via two connection tubes 10, 11.
  • the braking liquid storage box 8 is provided on the bogie 17.
  • the brake control part comprises a braking switch valve 9 disposed on two flowing channels 6,7 or two connection tubes 10,11.
  • a control end of the braking switch valve 9 is connected to a train brake control mechanism 12.
  • An opening and closing state of the braking switch valve 9 are controlled by the train brake control mechanism 12 to obtain a deceleration braking.
  • a front gearbox and a rear gearbox are respectively provided on two sides of the same bogie 17 of the train.
  • One braking liquid storage box is shared by the gearboxes on the same side.
  • FIG. 7 is a structural schematic diagram of a hydraulic switching valve and a gearbox of an externally engaged liquid damping type braking system for a train.
  • a braking switch valve 9 employs a hydraulic switch and it comprises a first hydraulic switching valve 9a and a second hydraulic switching valve 9b which are respectively disposed on two flowing channels 6, 7.
  • Two hydraulic switching valves 9a, 9b are respectively provided on the passages of two flowing channels 6, 7 for controlling the opening and closing of the two flowing channels 6, 7.
  • the two hydraulic switching valves 9a, 9b are identical in structure.
  • Both a driving liquid inlet 9.4 and a driving liquid outlet 9.5 of two hydraulic switching valve 9a, 9b are connected to a hydraulic driving device 12.
  • the initial state of two hydraulic switching valves 9a, 9b for the train is opposite to that of the hydraulic switching valve for the automobile, and the initial state is closed.
  • a brake control mechanism 12 is a hydraulic driving device, and it comprises an oil storage tank 12.1, an electrical oil pump 12.2 and a piston cylinder 12.3, which are connected in sequence.
  • the piston cylinder 12.3 is controlled by a brake operation mechanism 13.
  • An output end of the piston cylinder 12.3 is connected to oil inlets of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b via a liquid inlet conduit 12.4.
  • Oil outlets of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b are connected to the oil storage tank 12.1 via a liquid outlet conduit 12.5.
  • a liquid inlet solenoid valve 12.6 and a liquid outlet solenoid valve 12.7 are respectively disposed on the liquid inlet conduit 12.4 and the liquid outlet conduit 12.5.
  • the liquid inlet solenoid valve 12.6 and the liquid outlet solenoid valve 12.7 are used as electrical control switches.
  • the deceleration braking process of the liquid damping type braking system for an automobile of this invention is as follows.
  • the first hydraulic switching valve 9a and the second hydraulic switching valve 9b are opened.
  • the brake operating mechanism 13 namely the brake pedal
  • An Electronic Control Unit outputs an emergency brake signal to the liquid inlet solenoid valve 12.6 and the liquid outlet solenoid valve 12.7 for opening the liquid inlet solenoid valve 12.6 and closing the liquid outlet solenoid valve 12.7.
  • the driving fluid is introduced into the first hydraulic switching valve 9a and the opening degree of the hydraulic switching valve 9a is gradually reduced until the hydraulic switching valve 9a is closed. Since the first hydraulic switching valve 9a is closed, the circulation flowing of the brake fluid is blocked. The brake fluid in the gearbox is discharged. The pressure of the sealed circulation passage is gradually increased.
  • the reacting force acted on the surface of the gear is gradually increased when the gear engages and rotates, so that the rotational speed of the gear is gradually decreased.
  • the rotational speed of the axle of the automobile 15 is decreased until it stops.
  • the second hydraulic switching valve 9b is closed for obtain a braking.
  • the principle is the same as above.
  • a solenoid valve can be provided on the connection tubes by which the corresponding brake fluid enters to the gearbox when the automobile is normally moving forward.
  • the solenoid valve is controlled by the Electronic Control Unit (ECU).
  • ECU Electronic Control Unit
  • the solenoid valve is closed, thereby preventing the brake fluid from entering into the gearbox during a normal forward moving of the automobile, and thus finally avoids the affect caused by the long-term alternation of the brake fluid.
  • the solenoid valve is opened by a control of the Electronic Control Unit (ECU).
  • the brake fluid enters to the gearbox.
  • the rotation of the brake shaft is prevented by the resistance of the circulation flowing of the brake fluid in the gearbox, thereby obtaining the braking.
  • the implementation of an anti-lock braking system is as follows.
  • the liquid damping type braking system for an automobile of the present invention is also realized by providing the liquid inlet solenoid valve 12.6 and the liquid outlet solenoid valve 12.7 on the liquid inlet conduit 12.4 and the liquid outlet conduit 12.5 respectively.
  • the electrical pump 12.2 is arranged between the piston cylinder 12.3 and the liquid storage tank 12.1.
  • the Electronic Control Unit sends an instruction to close the liquid inlet solenoid valve 12.6 for cutting off the drive liquid and simultaneously open the liquid outlet solenoid valve 12.7 for discharging the drive liquid in the chambers of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b to the liquid storage tank 12.1. Meanwhile, the first hydraulic switching valve 9a and the second hydraulic switching valve 9b are opened by the reset spring and the braking disappears immediately.
  • the principle of the deceleration braking of the train is similar to that of the automobile.
  • the differences between the liquid damping type braking system for a train and the liquid damping type braking system for an automobile are as follows.
  • (1) The setting of the hydraulic switching valve is opposite to that of the automobile.
  • the initial states of the two hydraulic switching valves 9a, 9b for the train are closed.
  • the first hydraulic switching valve 9a and the second hydraulic switching valve 9b are opened by the control of the brake control mechanism 12.
  • the brake operating mechanism 13 namely a control system for a train, sends a braking instruction to start the following operations.
  • the liquid inlet solenoid valve 12.6 is closed for preventing the drive liquid from entering and the liquid outlet solenoid valve12.7 is opened for discharging the drive liquid in the chambers of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b to the liquid storage tank 12.1.
  • the first hydraulic switching valve 9a and the second hydraulic switching valve 9b are reset by the action of the reset spring.
  • the first hydraulic switching valve 9a and the second hydraulic switching valve 9b are closed to achieve the braking.
  • the first hydraulic switching valve 9a and the second hydraulic switching valve 9b are gradually controlled by the piston cylinder 12.3 from being fully opened to being closed, thereby controlling the brake speed of the brake shaft.
  • Arbitrary braking characteristic curves required by the device are formed to meet the actual requirements.
  • the above embodiments describe the basic principles and main features of the present invention and the advantages of the present invention.
  • the liquid damping type braking system has a simple structure, a low manufacturing cost, a good braking, a broader application prospect and strong market competitiveness.
  • the protection scope of the present invention is not limited by the above embodiments.
  • other pumps having the similar structure and being simply modified according to the principle and method of this invention, the structure and location of the braking switch valve and the specific manner of the brake control mechanism can be arbitrarily chosen as long as the principle of the present invention is applied.
  • the fluid circulation is blocked and the resistance is converted into the braking force to achieve the braking effect.
  • Various changes and modifications of this invention without departing from the general spirit and scope of the present invention will fall into the scope of this invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Braking Arrangements (AREA)
  • Regulating Braking Force (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Multiple-Way Valves (AREA)
  • Braking Systems And Boosters (AREA)
EP17781834.1A 2016-04-13 2017-04-07 Flüssigkeitsdämpfendes bremssystem Withdrawn EP3444496A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201610227237.2A CN105715704B (zh) 2016-04-13 2016-04-13 液体阻尼式制动系统
CN201620304886.3U CN205780449U (zh) 2016-04-13 2016-04-13 液体阻尼式制动系统
PCT/CN2017/079673 WO2017177858A1 (zh) 2016-04-13 2017-04-07 液体阻尼式制动系统

Publications (2)

Publication Number Publication Date
EP3444496A1 true EP3444496A1 (de) 2019-02-20
EP3444496A4 EP3444496A4 (de) 2020-01-08

Family

ID=60042712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17781834.1A Withdrawn EP3444496A4 (de) 2016-04-13 2017-04-07 Flüssigkeitsdämpfendes bremssystem

Country Status (5)

Country Link
US (1) US10794438B2 (de)
EP (1) EP3444496A4 (de)
JP (1) JP2019513953A (de)
KR (1) KR102169602B1 (de)
WO (1) WO2017177858A1 (de)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US564246A (en) * 1896-07-21 gould
GB732043A (en) * 1949-01-22 1955-06-15 Daimler Benz Ag Improvements relating to hydraulic brakes for vehicles
CH316063A (fr) * 1954-05-24 1956-09-15 Gallay Robert Dispositif de freinage hydraulique d'un véhicule
GB1251536A (de) * 1967-12-28 1971-10-27
FR2258563A1 (en) * 1974-01-18 1975-08-18 Tebec Pierre Integral fluid brake for rotating spindle or shaft - has variable restriction in closed line of shaft driven pum
US5566795A (en) * 1994-08-24 1996-10-22 Barefoot; Richard Braking system for a rail car
JP3875360B2 (ja) * 1997-07-14 2007-01-31 本田技研工業株式会社 車両用制動力及びヨーモーメント制御装置
US5971880A (en) * 1998-08-07 1999-10-26 Keiser; Fred Infinitely variable ratio transmission
DE19934497A1 (de) * 1999-07-22 2001-01-25 Linde Ag Hydrostatisches Antriebssystem
JP2001191911A (ja) * 2000-01-05 2001-07-17 Toyota Motor Corp ブレーキ液圧制御装置
EP1544494A1 (de) * 2003-12-15 2005-06-22 Clemar Eleuterio Bucci Eine durch eine in einem Strömkreis umlaufende Flüssigkeit geregelte Bremsvorrichtung für Fahrzeuge
KR100974758B1 (ko) * 2008-06-05 2010-08-06 현대자동차주식회사 차량의 주차 브레이크 장치
US8292049B2 (en) * 2010-03-18 2012-10-23 Avshalom Eden Sharaphi Vehicular brake and method therfor
CN103994161A (zh) * 2013-06-28 2014-08-20 林谊忠 一种缓速器
CN104787020A (zh) * 2015-03-20 2015-07-22 同济大学 一种具有新型解耦方式的电子液压制动系统
CN205780449U (zh) * 2016-04-13 2016-12-07 曾义波 液体阻尼式制动系统
CN105715704B (zh) * 2016-04-13 2017-12-05 曾义波 液体阻尼式制动系统

Also Published As

Publication number Publication date
WO2017177858A1 (zh) 2017-10-19
EP3444496A4 (de) 2020-01-08
KR20180129915A (ko) 2018-12-05
JP2019513953A (ja) 2019-05-30
US20190048948A1 (en) 2019-02-14
KR102169602B1 (ko) 2020-10-23
US10794438B2 (en) 2020-10-06

Similar Documents

Publication Publication Date Title
KR100895130B1 (ko) 변속기
US2392421A (en) Hydraulic control valve
US20170108066A1 (en) Hydraulic anti-lock brake wheel cylinder and axle braking system
KR20160117495A (ko) 차량용 유압 시스템
CN105026781A (zh) Awd车辆的液压盘式离合器中的截止阀
CN101287934B (zh) 用于控制自动变速器的起动离合器的控制阀装置
US3734258A (en) Coupling with quick release valve
US2876881A (en) Automatic self-adjusting clutch
CN101922524A (zh) 全封闭多盘湿式制动装置
CN113464356A (zh) 一种适用于闭式系统的液压驱动装置
EP3444496A1 (de) Flüssigkeitsdämpfendes bremssystem
CN209638286U (zh) 运矿设备湿式行驻车刹车装置
CN105715704A (zh) 液体阻尼式制动系统
CN208831546U (zh) 一种高空作业车行走减速机
US2588724A (en) Friction clutch and brake
CN201802789U (zh) 全封闭多盘湿式制动装置
CN205780449U (zh) 液体阻尼式制动系统
CN108266419B (zh) 用于电动静液作动器集动力控制油路为一体的装置
CN108006113B (zh) 一种柱塞缸推动锥形导轨的径向摩擦式离合器
FI57558C (fi) Styrventil foer skengaoende fordons trycklufts-bromsanlaeggningar
CN1050573C (zh) 驱动装置
EP0116935A2 (de) Hydraulische Kupplungsantriebseinrichtung
CN106184146B (zh) 辅助制动系统
CN215486349U (zh) 一种适用于闭式系统的液压驱动装置
KR101464518B1 (ko) 굴삭기 주행모터의 파킹브레이크 해제장치

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20181113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20191211

RIC1 Information provided on ipc code assigned before grant

Ipc: F16D 57/00 20060101AFI20191205BHEP

Ipc: F16D 57/06 20060101ALI20191205BHEP

Ipc: B60T 1/093 20060101ALI20191205BHEP

Ipc: B60T 10/04 20060101ALI20191205BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20211103